CLASS RACER FORUM

CLASS RACER FORUM (https://classracer.com/classforum/index.php)
-   Stock and Super Stock (https://classracer.com/classforum/forumdisplay.php?f=3)
-   -   Nhra releases 2017 rule book amendments (https://classracer.com/classforum/showthread.php?t=66423)

Ed Carpenter 05-31-2017 11:30 AM

Re: Nhra releases 2017 rule book amendments
 
Shifting should be a function of the driver. No assisting devices whatsoever. The same for everybody. Just my .02

Bobby Fazio 05-31-2017 12:25 PM

Re: Nhra releases 2017 rule book amendments
 
If you need assistance shifting a 2 or 3 speed automatic you probably shouldn't be racing. Now when is Elegal-shift going away in stock?

Bobby DiDomenico 05-31-2017 12:33 PM

Re: Nhra releases 2017 rule book amendments
 
Quote:

Originally Posted by Ed Carpenter (Post 536049)
Shifting should be a function of the driver. No assisting devices whatsoever. The same for everybody. Just my .02

Ed,
We could never figure out how or why they ever let some automatic cars have an electronic 1-2 shift.

novassdude 05-31-2017 12:55 PM

Re: Nhra releases 2017 rule book amendments
 
Quote:

Originally Posted by Ed Carpenter (Post 536049)
Shifting should be a function of the driver. No assisting devices whatsoever. The same for everybody. Just my .02

By the name automatic transmission it should not take any function of the driver or it would be a manual transmission.
A true automatic you just put it in drive and go.

Mark Yacavone 05-31-2017 01:29 PM

Re: Nhra releases 2017 rule book amendments
 
Let's not get too carried away here. Governors in automatics were OEM items, long before TA or ratchet shifters were around.

Carguy49 05-31-2017 01:47 PM

Re: Nhra releases 2017 rule book amendments
 
Mark, since you work with automatics all the time, I have a question for you. Is there a limit as to when an automatic trans can be made to shift by itself?

ss3011 05-31-2017 02:12 PM

Re: Nhra releases 2017 rule book amendments
 
Most governors , or auto 1-2 shifts are based on output shaft rpm . Electronic shifts are based on engine speed . The difference is on good weather days a governor shift will appear to shift at a higher rpm , due to converter slip . Electronic shifts will shift at the same rpm regardless of the weather . Might be a problem trying to dial in a car if the weather changes during eliminations .

ALMACK 05-31-2017 04:33 PM

Re: Nhra releases 2017 rule book amendments
 
Quote:

Originally Posted by Mark Yacavone (Post 536064)
Let's not get too carried away here. Governors in automatics were OEM items, long before TA or ratchet shifters were around.

I bracket raced an automatic for years and tuned the shift points with the governor.
Just put it in D ....and it worked fantastic... shifted dead on every time on target.

ALMACK 05-31-2017 04:36 PM

Re: Nhra releases 2017 rule book amendments
 
Quote:

Originally Posted by ss3011 (Post 536068)
Most governors , or auto 1-2 shifts are based on output shaft rpm . Electronic shifts are based on engine speed . The difference is on good weather days a governor shift will appear to shift at a higher rpm , due to converter slip . Electronic shifts will shift at the same rpm regardless of the weather . Might be a problem trying to dial in a car if the weather changes during eliminations .

My IHRA Pure Stocker has the electronic auto and after I installed the Baumann shift kit, it automatically shifts dead on @ 5,300 every pass, every gear :)

ss3011 05-31-2017 05:18 PM

Re: Nhra releases 2017 rule book amendments
 
Quote:

Originally Posted by ALMACK (Post 536075)
My IHRA Pure Stocker has the electronic auto and after I installed the Baumann shift kit, it automatically shifts dead on @ 5,300 every pass, every gear :)

Does your transmission have a governor ? When I raced Pure Stock we had to run the stock 13" converter , which was pretty tight , so there was not much slip in the converter at the shift point . Has the Pure Stock rules been changed , so it allows a loose converter ?


All times are GMT -4. The time now is 02:47 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright Class Racer.com. All Rights Reserved. Designated trademarks and brands are the property of their respective owners.